What is the overall order of a reaction

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Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Chemical Kinetics

Question:

What is the overall order of a reaction which has the rate expression, Rate = k [A]^1/2 [B]^3/2?

Options:

First order

Second order

Third order

n^th order

Correct Answer:

Second order

Explanation:

Rate = k [A]^x [B]^y

Overall order = x + y

So order = 1/2 + 3/2 = 2, i.e., second order